Pole reenforcement



C. A. VAN DE MARK March 26, 1935.

POLE REENFORGEMENT Filed May 12, 1954 Patented Mar. 26, 1935 4 Claims.

This invention relates to-improvements in pole reenforcements.

Cmeolczject of. this in erition to provide an improved pole reenter lent which will be readily adjustable to accommodate poles of different diameters; i

Another object oi this invention is to provide an improved pole reenforceinent which can be manufactured at minimum cost.

With the above and other ObjfiECJS in View, this invention includes-ail improvements over the prior art which'are disclosed in this application.

In the accompanying draw' ig, in which one way of carrying out the invention is shown for illustrative purposes: 7

Fig. 1 is a front elevation of the lower portion of a pole, with the improved reenzforcement applied thereto;

Fig. 2 is a side elevation at right angles to Fig. 1;

Fig. 3 is a sectional view on Fig. 1; and

Fig. i is a perspective view of one of the reenforcing elements or angle-bars.

In the description and claims, the various'parts are identified by specific names for convenience, but they are intended to be as generic in their application as the prior art will permit.

Referring to the drawing, 10 is a pole, to which the improved reenioroement is to be applied to strengthen the pole in the region of the ground line 11 to overcome weakness in the pole due to a portion of the wood of the pole becoming decayed. The improved pole reenforcement includes a reenforcing member 12 consisting of a pair of reenforcing elements or angle-bars 13, located in opposed relationship to a second reenforcing member 14 consisting of a second pair of reenforcing elements or angle-bars 13. Each angle-bar 13 has a longitudinal pole-engaging flange 15, and a longitudinal bracing-flange 16 extending transversely outward from the poleengaging flange. The bracing-flanges 16 of each pair of angle-bars extend from the most widely spaced-apart edges of the pole-engaging flanges 15.

Bolts 1'7 extend through holes 18 in, and interconnect and pull toward each other, the bracingfianges 16 of each pair of angle-oars. Other bolts 19 extend through holes 20 in, and interconnect and pull toward each other, each bracing-flange 16 of one pair of angle-bars with a corresponding bracing-flange 16 of the other pair of angle-bars. Lag-bolts 21 are passed through the holes 22 in each pole-engaging flange and the line 3--3 of (Cl; -997 I are screwed into'Qthe upper' andlower portions of the pole 10.

'InFig, 3, the double ai'row-23 indicates the-d1 reotion ot a-street' adjacent the side of which the pole 1G located It will benoted thatboth pairs of angle-bar's are so placed-asto ago-reamed; mum of projecting parts at the-side 24 0t "the pole, which ls adjacent the street indicated 'at thus minimizing Lthe tendency of vehicles to catch on-parts of-the-pole reenfor'oemeniz- It will be observed that th'e angle-bars 'of eachpalr are adjustable toward 'and from one' another, to place them at any'desired distanceapart/depending upon the diameter of the'pole' ld- Itwill also be noted that when applied in the manner illustrated in Fig. 3, the corner portion 25 of each pole-engaging flange 15 tends to become-forced or pressed into the pole. It will also be noted that the bolts 17 in the construction illustrated in Fig. 3, rest upon the free ends of the flanges 15.

The bolts 19, when applied in the manner illustrated in Fig. 3, are in direct contact with the wood of the pole and tend somewhat to become pressed thereinto. If desired, of course, bearingolocks may be interposed between the bolts 19 and the poles 10 to afiord a larger bearing surface against the pole to minimize the tendency of the bolts 19 to sink into the pole.

In order to apply the pole reenforcement to a standing pole, a hole is dug around the pole sufficiently deep to accommodate the pole reenforcement, which latter is then applied about the pole and the bolts are tightened up to cause the angle-bars 13 to be firmly pressed into reenforcing engagement with the pole. The lag-screws are then applied and screwed firmly into the poles as previously described.

In such instances as the portion of the pole in the ground is too unsound to permit of its being utilized, the pole can be cut off at the ground line and the pole, with electric wires or the like remaining in place, can be swung to one side a by means of a pole derrick, whereupon the old decayed pole butt in the ground can be pulled out.

A new pole butt is made or the proper size, and the improved pole reenforcement it attached in proper position thereon, whereupon the new pole butt is placed in the ground in proper position. The pole proper is then swung into place by means'of the derrick to cause the lower end of the pole to move down within the projecting portion of the pole reenforcement, whereupon the bolts are tightened on the pole reenforcement and the 1ag-screws are screwed into place.

The invention may be carried out in other specific ways than that herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiment is therefore to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.

I claim:

1. In combination with a pole: a plurality of reenforcing angle-bars spaced apart from each other and extending longitudinally of the pole; each angle-bar consisting of one longitudinal pole-engaging flange, and one longitudinal bracing-flange extending transversely from one longitudinal edge of a pole-engaging flange; and bolts connected to each bracing-flange and extending in opposite directions about the pole and pulling each bracing-flange in opposite directions transversely of the bracing-flanges.

2. In combination with a pole; a plurality of reenforcing angle-bars spaced apart from each other and extending longitudinally of the pole; each angle-bar being of substantially-uniform cross-section throughout its length except as to bolt-holes and consisting of one longitudinal poleengaging flange, and one longitudinal bracingflange extending transversely from one longitudinal edge of a pole-engaging flange; and bolts connected to each bracing-flange and extending in opposite directions about the pole and pulling each bracing-flange in opposite directions transversely of the bracing-flanges.

3. In combination with a pole: opposed, spacedapart pairs of reenforcing angle-bars extending longitudinally of the pole; each angle-bar consisting of one longitudinal pole-engaging flange, and one longitudinal bracing-flange extending transversely from one longitudinal edge of a poleengaging flange, the bracing-flanges 01' each pair of angle-bars extending from the most widely spaced-apart edges of the pole-engaging flanges of a pair of angle-bars; bolts interconnecting and pulling toward each other, the bracingflanges of each pair of angle-bars; and other bolts interconnecting and pulling toward each other, each bracing-flange of one pair of angle-bars with a corresponding bracing-flange of the other pair of angle-bars.

4. In combination with a pole: opposed, spacedapart pairs of reenforcing angle-bars extending longitudinally of the pole; each angle-bar being of substantially-uniform cross-section throughout its length except as to bolt-holes and consisting of one longitudinal pole-engaging flange, and one longitudinal bracing-flange extending transversely from one longitudinal edge of a pole-engaging flange, the bracing-fianges of each pair of angle-bars extending from the most widely spaced-apart edges of the pole-engaging flanges of a pair of angle-bars; bolts interconnecting and pulling toward each other, the bracing-flanges of each pair of angle-bars; and other bolts interconnecting and pulling toward each other, each bracing-flange of one pair of angle-bars with a corresponding bracing-flange of the other pair of angle-bars.

CHRISTIAN A. VAN DE MARK. 

